body {
  width: 300px;
  min-height: 200px;
  margin: 0;
  font-family: Arial, sans-serif;
}

#app {
  padding: 16px;
}

.btn {
  width: 100%;
  padding: 8px 16px;
  background-color: #4CAF50;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  margin: 8px 0;
}

.btn:hover {
  background-color: #45a049;
}

.message {
  margin-top: 8px;
  padding: 8px;
  border-radius: 4px;
}

.message.success {
  background-color: #dff0d8;
  color: #3c763d;
}

.message.error {
  background-color: #f2dede;
  color: #a94442;
} 